I was with my boyfriend sitting in his car in a field. We were in the backseat of his car when I noticed a strange light come from outside. I sat up and opened the door against my boyfriends wishes, he wanted to continue or little rendevous. So I looked out and a bright light flashed in the sky again. At first I thought it was an airplane, but it was such an odd shape and color. It was diamond shaped with a pointed front in back, or so it looked and it emitted a silvery glow. It last for about 30 seconds and disappeared.